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Programming-Idioms

History of Idiom 12 > diff from v76 to v77

Edit summary for version 77 by fibre:
[JS] Didn't return a value
↷

Version 76

2019-09-26, 15:51:09

Version 77

2019-09-26, 15:51:26

Idiom #12 Check if list contains a value

Check if list contains a value x.
list is an iterable finite container.

Illustration

Idiom #12 Check if list contains a value

Check if list contains a value x.
list is an iterable finite container.

Illustration
Extra Keywords
array vector
Extra Keywords
array vector
Code 
list.includes(x)
Code 
return list.includes(x);
Comments bubble
ES7 (Works on strings from ES6)
Comments bubble
ES7 (Works on strings from ES6)
Doc URL
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes
Doc URL
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes